Looking for feedback on this model. Pros & Cons. I want to buy one but I don't want another experience I had with the Bluebird I rented this year. It kicked my butt! I could barely load it onto my truck using ramps because the front wheel was not self propelled. Half of the tines were not penetrating the ground on slight inclines. My lawns are 5-15,000 Sq. Ft. a stop. Is this machine similar to the Bluebird?? I hope it is better!